Halloween is around the corner, and just because you’re expecting doesn’t mean you have to miss out on the fun! Whether you want to go all-out spooky or keep things simple and stylish, we’ve got the best pregnancy-friendly Halloween costumes to ensure you and your bump are part of the celebration. From comfortable and cute to bold and creative, these costume ideas will help you join in the festivities while keeping your maternity style on point.
Best pregnancy Halloween costumes at a glance:
Best skeleton T-Shirt pregnancy Halloween costumes: Halloween Pregnant Skeleton Shirt - buy here on Etsy.
Best funny pregnancy Halloween costumes: Bun In The Oven Costume - buy here on Halloween Costumes
Best magical pregnancy Halloween costumes: Disney Cinderella Fairy Godmother Womens Costume - buy here on Halloween Costumes
If you love dressing up for Halloween, you don't have to miss out this year just because you have a bump. So if you've already started decorating your house for Autumn, it's time to start shopping for those Halloween costumes.
tuclothing.sainsburys.co.uk
Perfect for mums-to-be who want a spooky but simple look dress up your bump with a classic witchy vibe using this black star-printed cape and hat set. It’s ideal for adding a touch of Halloween magic without compromising on comfort. The one-size-fits-all design makes it easy to pair with a bump-friendly outfit, like a cosy unitard.
Pros
- Easy to wear over any maternity outfit
- Simple and classic witch design
- Affordable price point
Cons
- Doesn't include the inner and you have to buy separately
Buzz into Halloween fun with this adorable bee dress, complete with wings and headband. Made of a soft cotton blend, it's breathable and comfortable, making it a great option for pregnant mums who want something simple yet fun.
Pros
- Soft, skin-friendly material
- Cute and lighthearted design
- Comfortable and breathable
Cons
- Might not be spooky enough for some
This beautiful Day of the Dead-inspired costume comes with a long, loose-fitting dress and a flowered headband with a veil—ideal for showing off your pregnancy glow in a spooky way. Add a temporary sugar skull face sticker to complete the look.
Pros
- Loose-fitting and bump-friendly
- Eye-catching and dramatic
- Includes a headband with a veil
Cons
- Requires additional accessories for the full sugar skull effect
- Sizing can run small, so size up
Best Winnie the Pooh pregnancy Halloween costume
This Women's Halloween Short Sleeve Maternity Dress is inspired by the Winnie the Pooh character. It's a sweet design that's flattering for any bump size and you can layer it up for warmth too. Some have mentioned about adding extra clothes underneath it as it can be slightly see through in some lights.
One customer said: "Dress worked perfect for Halloween costume. It’s very see through so definitely get skin coloured “spanx” to smooth lines and cover up underneath. Everything shows otherwise" Another said: "I got this for my Halloween themed baby shower to be Winnie the Pooh. Can’t wait. I tried it on and it fit perfect"
Pros
- Inspired by Winnie the Pooh character
- Perfect for any bump size
Cons
- Ears are not included
Available in sizes: | M, L and XL |
- Pull on design
- Short sleeve
Step into the world of Gilead with this eerie Handmaid’s Tale costume. Its loose-fitting design makes it comfortable for pregnant mums, while the dark red cloak and white bonnet create a striking, instantly recognisable look.
Pros
- Loose-fitting and bump-friendly
- Iconic and dramatic costume
- Perfect for fans of the show
This fun avocado costume is perfect for expecting mums with a sense of humor! Its unisex design allows it to fit a growing belly comfortably, making it a playful and easy choice for Halloween festivities.
Pros
- Hilarious and unique
- Unisex design fits comfortably over a bump
- Lightweight and easy to wear
This plush fleece skeleton jumpsuit is the ultimate combination of cozy and spooky. With a zip closure for easy dressing and built-in pockets, it’s perfect for lounging at home or heading out to a Halloween party. It’s also ideal for mums-to-be wanting to keep warm.
Pros
- Super comfortable and warm
- Zipper makes it easy to put on and take off
- Pockets for practicality
Turn heads at the Halloween party with this spider web poncho, complete with a glow effect and a spider crown. This costume is super easy to slip on over any maternity outfit, making it a great last-minute option that’s sure to stand out.
Pros
- Glows in the dark for added spookiness
- Easy to throw on over any outfit
- Durable and well-made
Cons
- Limited to a poncho style, so may require layering
Best skeleton T-shirt pregnancy Halloween costume
www.etsy.com
This Halloween Pregnant Skeleton Shirt would not only make a good Halloween themed pregnancy announcement, but it would also be great for a more subtle Halloween costume. Pair with some black maternity leggings and you can even add some skeleton face paint for a complete look.
One review said: "I was so happy with this shirt! Soft, high quality, and roomy enough for my 9-month-pregnant belly but still flattering. I work at an elementary school so we go all out for Halloween and I got so many compliments! It was shipped quickly and for a very reasonable price considering it was international. The seller followed up to make sure everything was great."
Pros
- Different colour choices and baby skeleton options for multiples
- Broad range of sizes for comfort with a growing bump
Cons
- No option for triplets or quadruplets
Available in sizes: | XS to 6XL |
- Personalised baby skeleton feature
- Wide range of sizes
Best all-in-one pregnancy Halloween costume
www.halloweencostumes.co.uk
This Maternity Cow Costume for Women is a brilliant costume. You can even get your partner to match and dress as a farmer, and if you have little ones already they can dress up as farm animals! The cow costume is an all in one style with udders and a tail.
Pros
- All in one design
- Perfect for the bump
Cons
- Accessories not included
Available in sizes: | Standard size |
Best monster pregnancy Halloween costume
Taking a Mike Wazowski costume and making it a great pregnancy Halloween T-shirt, the Maternity Monster Eye Ball Tee is soft and a lovely shade of green. While it's a maternity style top, you might want to size up for comfort and more accurate placement of the eyeball on your bump, (especially if you're nearly full term!)
One review said: "Exactly what I wanted. I sized up but didn’t need to, since this was actually a maternity cut shirt, but looks fine with the extra room too. Placement of face was fine. I was nervous to order based on other reviews but was glad I did!"
Pros
- Cotton blend
- Subtle yet effective
Cons
- Some mentioned the eye sits slightly higher on the bump, but sizing up prevented this problem
Available in sizes: | Small - 3XL |
- Maternity cut design
- Pull on style
- Cotton blend
Best pumpkin pregnancy Halloween costume
www.fruugo.co.uk
If you're quite far along and have a big bump, the last thing you want to be wearing is a huge, bulky pumpkin costume, which is where the Maternity Care Pumpkin Fashion Dress is a great alternative. It's a lightweight dress that you can layer up with leggings or tights.
Pros
- Comfortable fit
- More comfortable than a bulky costume
Cons
- No onsite reviews
Available in sizes: | Small - 5XL |
- Long sleeve style
- Casual fit
Best funny pregnancy Halloween costumes
www.halloweencostumes.co.uk
One way to announce your pregnancy this Halloween, or even just as a funny Halloween costume in general, the Bun in the Oven Costume is a hilarious choice to wear to a party this year. You can layer it on top of a long black sleeve top and black trousers or leggings. It even has an opening oven door!
Pros
- Oven door opens to reveal a bun
- One size fits all
Cons
- Trousers and under top not included
Available in sizes: | Standard |
- Pull over oven costume
- Opening oven door
Best skeleton dress pregnancy Halloween costume
www.boohoo.com
The Maternity Skeleton Hands Halloween Bodycon Dress is flattering for your bump, whilst also keeping you warm. You can dress it up with skeleton tights and face paint, or just keep it simple with black tights. It's longed sleeved and made from a soft jersey material so that there's enough stretch to be comfortable.
One customer review said: "Fitted well, good fun for Halloween. Bought a 10 as that's my usual size."
Pros
- Flattering fit
- Can be dressed up or dressed down
Cons
- Not a huge range of sizes available
Available in sizes: | 8, 10, 12, 14 and 16 |
- Bodycon design
- Long sleeve
Best magical pregnancy Halloween costume
www.halloweencostumes.co.uk
Paired with your own accessories, the Disney Cinderella Fairy Godmother Women's Costume is flattering on your bump and makes a real statement Halloween costume. It comes with a built in hooded jacket that fastens on the front with a pink bow. It's also a hook and loop fastening at the back of the dress.
Pros
- Built in hood to jacket
- Sparkly and comfortable
Cons
- Double check the sizing, as fabric doesn't have much stretch - could be worth sizing up
Available in sizes: | S, M, L and XL |
- Hook and loop fastener at back of neck
- Sleeveless dress
- Satin skirt
- Built in petticoat
- Hooded jacket
Pro tips for choosing the perfect halloween pregnancy costumes
When selecting Pregnancy Halloween Costumes, we suggest sticking to your pre-pregnancy size for maternity pieces, as these costumes are designed to accommodate your growing bump. However, if you opt for non-maternity clothing, especially fabrics that don’t stretch—like linen or cotton—it’s best to size up by one or two sizes for a comfortable fit.
Incorporating non-maternity items can enhance your Halloween look while providing comfort. Consider adding oversized button-down shirts, which can be styled in various ways, such as knotted at the waist or layered over other tops. Empire-waist dresses are also a great choice, offering a flattering silhouette and extra room for your bump. Stretchy pants or leggings can be a comfortable alternative, allowing for easy movement and flexibility.
Extra tips:
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Layer for style: Use cardigans or capes to create depth in your costume while keeping cosy
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Accessorise creatively: Fun accessories, like hats, masks, or themed jewellery, can elevate your costume without needing to rely on the base outfit.
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Consider DIY options: Get crafty by customising non-maternity clothes to fit your Halloween theme, making them unique to your style.
With these tips in mind, you can confidently embrace the spooky spirit of Halloween while celebrating your beautiful bump!
When is Halloween?
Halloween is celebrated on the last day of October, which is the 31st. This year, Halloween will fall on a Thursday.
Why do we celebrate Halloween in the UK?
You may be wondering why we celebrate Halloween in the UK. Although indeed, it isn't as popular as in America, the holiday has grown in popularity here. Whether that is because of the super cute Instagram pumpkin-picking pics you can get or not, who knows? However, you would be wrong to think that this is a new craze. Halloween has been celebrated in the UK going back to the Celtic times - that's more than 2,000 years.
About the author
Anne Lora Scagliusi is a Senior Digital Writer at Mother & Baby. She is a Scotland-based journalist with over a decade of international writing experience, specialising in women’s health, maternal mental health, and wellness. Her work has been featured in Vanity Fair, Marie Claire, and Glamour and has appeared on several Vogue global editions. She is mum to a one-year-old bambino and lives between Italy and the UK.